﻿<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <title>Three框架</title>
    <script src="js/Three.js"></script>
    <script src="js/Stats.js"></script>
    <script src="js/tween.min.js"></script>

    <style type="text/css">
        div#canvas-frame {
            border: none;
            cursor: pointer;
            width: 100%;
            height: 600px;
            background-color: #EEEEEE;
        }
    </style>
    <script>
        var renderer;
        var stats;

        function initThree() {
            width = document.getElementById('canvas-frame').clientWidth;
            height = document.getElementById('canvas-frame').clientHeight;
            renderer = new THREE.WebGLRenderer({
                antialias: true
            });
            renderer.setSize(width, height);
            document.getElementById('canvas-frame').appendChild(renderer.domElement);
            renderer.setClearColor(0xFFFFFF, 1.0);

            stats = new Stats();
            stats.domElement.style.position = 'absolute';
            stats.domElement.style.left = '0px';
            stats.domElement.style.top = '0px';
            document.getElementById('canvas-frame').appendChild(stats.domElement);
        }

        var camera;
        function initCamera() {
            camera = new THREE.PerspectiveCamera(45, width / height, 1, 10000);
            camera.position.x = 0;
            camera.position.y = 0;
            camera.position.z = 600;
            camera.up.x = 0;
            camera.up.y = 1;
            camera.up.z = 0;
            camera.lookAt({
                x: 0,
                y: 0,
                z: 0
            });
        }

        var scene;
        function initScene() {
            scene = new THREE.Scene();
        }

        var light;
        function initLight() {
            light = new THREE.AmbientLight(0xFF0000);
            light.position.set(100, 100, 200);
            scene.add(light);

            light = new THREE.PointLight(0x00FF00);
            light.position.set(0, 0, 300);
            scene.add(light);
        }

        var cube;
        var mesh;
        function initObject() {
            var geometry = new THREE.CylinderGeometry(100, 150, 400);
            var material = new THREE.MeshLambertMaterial({ color: 0xFFFFFF });
            mesh = new THREE.Mesh(geometry, material);
            mesh.position = new THREE.Vector3(0, 0, 0);
            scene.add(mesh);
        }

        function threeStart() {
            initThree();
            initCamera();
            initScene();
            initLight();
            initObject();
           // initTween();
            animation();

        }
        function initTween() {
            new TWEEN.Tween(mesh.position)
                .to({ x: -400 }, 3000).repeat(Infinity).start();
        }
        function animation() {
            renderer.render(scene, camera);
            requestAnimationFrame(animation);

            stats.update();
            TWEEN.update();
        }

    </script>
</head>

<body onload="threeStart();">
    <div></div>
    <div id="canvas-frame"></div>
</body>

</html>